Ozone layer depletion

Q.

Which chemical is responsible for the depletion of the ozone holes?

Q.

Which gas is mainly responsible for the depletion of the ozone layer?

1. Oxygen

2. CFC

3. Nitrogen dioxide

4. All the above

Q.

Depletion of ozone layer is mainly due to

1. (a) Chlorofluorocarbon compounds

2. (b) Pollution

3. (c) Methane

4. (d) Pesticides

Q.

The ozone layer protects the environment by:

1. Not allowing sun rays to enter earth's atmosphere.

2. Not allowing harmful UV rays to enter earth's atmosphere.

3. Producing more oxygen.

4. Ozone layer is harmful for our environment.

Q.

Mention two causes of depletion of ozone layer.

Q.

Depletion of ozone layer is caused mainly by ___________.

Q.

State the cause of the destruction of ozone layer.

Q.

The major cause for depletion of ozone layer in stratosphere can be attributed to:

1. Increased usage of CFCs.

2. Decreased use of CFCs.

3. Increase in sulphur dioxide and carbon monoxide.

4. Increase in the level of greenhouse gases.

Q.

What layer in the atmosphere is responsible for filtering out solar radiation?

1. Torque Layer

2. Egg Layer

3. Ozone Layer

4. Green Layer